One-unit ventilating system



Aug. 8, 1933. F. F. WOOD ONE-UNIT VENTILATING SYSTEM Filed April 21. 1951 EFJ VMMZ Patented Aug. 8, 1933 UNITED STATES PATENT OFFICE 2 Claims.

which it is located and which shall be adapted to attain this end without subjecting the fowl or animals in the room or building to a direct cold draft.

With the foregoing ond other objects, the nature of which will appear as the description proceeds, the invention comprehends the provision of a ventilator which shall be adapted to maintain in constant circulation the air of the room or building in which it is located, which shall be adapted to mix a predetermined quantity of fresh air with the air of the room or building, and which shall be adapted to force a predetermined quantity of the foul air from the room or building.

The invention further comprehends the provision of a ventilator which shall comprise an upright hollow body open at its lower end to provide an intake for the heated air of the room or building, an intake flue extending to an outside wall of the room or building and communicating with the body near the lower end of the latter to conduct fresh air into the body, a discharge flue communicating with the upper end of the body to conduct the heated and fresh air into the room or building near the ceiling of the latter, and a discharge flue communicating with the upper end of the body and extending through said wall to conduct the undesired air from the body outside the room or building.

The invention further comprehends the provision of a ventilator which shall comprise air circulating and mixing means located within the body, dampers for controlling the amount of fresh air entering the body and the amount of undesired air discharged from the body and partly in side elevation of a ventilator constructed in accordance with my invention.

Figure 2 is a view in front elevation of the fresh and warm air discharge flue of the ventilator, and

Figure 3 is a sectional view taken on the plane indicated by the line 3-3 of Figure 2.

The ventilator comprises an upright hollow body 1 which is preferably of cylindrical formation and which is of such length as to extend from a point close to the floor to a point close to the ceiling of the room or building to be ventilated. The floor, ceiling and one outside wall of such room are illustrated and designated 2, 3 and 4, respectively. The body 1 is mounted upon legs 5, and the lower end thereof is fully opened to provide an intake 6 for the heated air in the room or building. A flue 7 which extends through the wall 4 and communicate's with the body 1 near the lower end of the latter, serves to conduct fresh air from outside of the room or building to the body.

A flue 8 which communicates with the upper end of the body and extends laterally therefrom, serves to conduct the fresh or heated air from the body into the room or building. A flue 9 which extends through the wall 4 communicates with .the upper end of the body 1 and serves to conduct undesired air from the body outside the room or building.

A damper 10 is mounted in the flue 7 for adjustment to regulate and control the amount of fresh air entering the body 1. The damper 10 is pivoted between its ends, as at 11, and a handle 12 for adjusting the damper is secured to the pivot 11. The handle 12 cooperates with a notched plate 13 secured to the flue 7 for securing the damper in adjusted position. The flues 8 and 9 extend in diametrically opposed relation from the upper flared end 1a of the body 1. A damper 13 by means of which the amount of heated and fresh air entering the flue 8 and the amount of foul air entering the flue 9 may be regulated and controlled is located within the upper end of the body 1 between the intake ends of these flues. The damper 13 extends downwardly from a pivot 14, and is adapted to be adjusted through the medium of a handle 15 secured to the pivot. The handle 15 cooperates with a notched plate 16 secured to the upper end of the body 1 for the purpose of securing the damper in fully opened position and is located centrally between the intake ends of the lines 8 and 9, and when it is in this position equal amounts of air will flow from the body 1 into the flues. When it is desired to cause more air to flow from the body 1 into the flue 8 than into the flue 9, the damper 13 is swung in the direction of the intake end of the flue 9, and when it is desired to cause more air to flow from the body 1 into the flue 9 than into the flue 8, the damper 13 is swung in the direction of the intake end of the flue 8.

' An electric motor 17 is supported by a bracket 18 within the body 1. The motor 17 is located substantially central between the ends of the body 1 and it is arranged on the bracket 18 with its armature shaft 19 disposed vertically. A fan 20 is secured to the armature shaft 19, and the operation thereof causes a forced draft through the body 1 and fines '7, 8 and 9.

The flue 8 is provided at the lower side of its discharge end with an upwardly and forwardly inclined lip 21 which causes the mixed fresh and heated air discharged from the flue to flow upwardly or in the direction of the ceiling 3. Blades 22 arranged across the disv charge end of the flue 8 and extending from the lip 21 to the upper side of the flue, are arranged in such angular relation with respect to each other as to cause the mixed fresh and heated air discharging from the flue to spread laterally., A hood 23 extending over the intake end of the flue '1, and a hood 24 extending over the intake end of the flue 9, prevent water from entering the flue. The body 1 is provided substantially central between its ends with a door 25 which when opened permits ready access to the motor 17.

In practice, the motor 17 will be under the control of a thermostat, not shown, which will be set to effect the operation of the motor when the temperature of the room or building rises to a predetermined degree. When the motor is in operation, the fan 20 causes a forced draft through the body 1 and flues '7, 8 and 9. The heated air in the room will enter the body 1 by way of the lower end thereof, and fresh air in an amount controlled by the position of the damper 10 will enter the body 1 close to the lower end of the latter. The fresh and heated air will mix within the body 1, and the mixture thereof will be materially facilitated by the fan 20.

some of the mixed fresh and heated air will flow from the body 1 into the room or building by way of the flue 8, and the balance thereof will flow through the body 1 to outside the room or building by way of the flue 9, the amount of air flowing through the respective flues depending upon the position of the damper 13. As the air flowing into the room or building is deflected upwardly by the lip 21 and spread laterally by the blades 22, it will be uniformly distributed throughout the, upper portion of the room. In view thereof, as the heated air is taken into the body 1 at a point close to the floor of the room or building, and as the motor 17 is under the control of the thermostat set for operation when the temperature of the room or building reaches to a predetermined degree, it will be understood that the ventilator will maintain a substantially uniform temperature throughout the entire length, breadth and height of the room or building.

From the foregoing description, taken in connectionv with the accompanying drawing, it will be understood that the ventilator is highly eflicient, that it may be manufactured and sold at a comparatively low cost, that it may be easily installed in a room or building as it is only necessary to provide an outer wall of the room or building with openings for the reception of the intake ends of the flues 7 and 9, and that it may be maintained in operation at comparatively low cost.

While I have described the principle of the invention, together with the structure which I now consider the preferred embodiment thereof, it is to be understood that the structure shown is merely illustrative and that such changes may be made, when desired, as fall within the scope of the invention as claimed.

What is claimed is:--

1. A ventilator comprising a hollow body provided at its lower end with a heated air intake, a fresh air intake flue communicating with the body near the lower end of the latter, a fresh and heated air discharge flue communicating with the upper end of the body and provided at the lower side of its discharge end with an upwardly deflectedlip, blades extending across the discharge end of said discharge flue and in angular relation, a second air discharge flue communicating with the upper end of the body, the discharge flues being disposed diametrically in opposed relation, and a damper positioned between the intake ends of the discharge flues and having 'a portion depending within the body and adjustable to regulate the amount of air flowing through the respective flues.

2. A ventilator comprising a hollow body provided at its lower end with a heated air intake, a fresh air intake flue communicating with the body near the lower end of the latter, a fresh and heated air discharge flue communicating with the upper end of the body and provided at the lower side of its discharge end with an upwardly deflected lip, blades extending across the discharge end of said discharge flue and in angular relation, a second air discharge flue communicating with the upper end of the body, the discharge flues being disposed diametrically in opposed relation, and means movable relative to the first and second discharge flues to regulate the amount of air flowing through the respective flues.

FORDHAM F. WOOD. 

